Add 12/75 and 9/21
12/75 + 9/21 is 103/175.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 21 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 75 × 7 = 525,
12/75 = 12 × 7/75 × 7 = 84/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
9/21 = 9 × 25/21 × 25 = 225/525 - Add the two like fractions:
84/525 + 225/525 = 84 + 225/525 = 309/525 - 309/525 simplified gives 103/175
- So, 12/75 + 9/21 = 103/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/75+9/21 12/75+18/21 12/75+9/42 36/75+9/21 12/75+27/21 12/75+9/63 60/75+9/21 12/75+45/21 84/75+9/21 12/75+63/21